Julius kamsler



(No Model.)

J KAMSLER ELECTRIC BURGLAR ALARM.

. alga Patented Feb. 21, 1893.

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Uivitrnn *TATES PATENT Erica.

JULIUS KAMSLER, OF NEW YORK, N. Y.

ELECTRIC BURGLAR-ALARM.

SPECIFICATION forming part of Letters Patent No. 492,330, dated February21, 1893.

Application filed December 15,1892. Serial No. 455,250. (No model.)

To all whom it may concern:

Be it known that I, JULIUS KAMSLER, a citizen of the United States,residing at New York, in the county and State of New York, have inventednew and useful Improvements in Electric Burglar-Alarms, of which thefollowing is a specification.

The object of this invention is to provide a burglar alarm which iscompact in construction and readily applied in place and the inventionconsists in the novel features pointed out in the followingspecification and claim and illustrated in the annexed drawings, inwhich,

Figure 1, shows a face view of the contact mechanism of the alarm inplace. Fig. 2, is a face view of the contact mechanism of Fig. 1enlarged and detached. Fig. 3, is an inverted plan view of Fig. 1. Fig.4, is a section along or 03 Fig. 2.

In the drawings the letter A indicates a base or support having thebinding posts B O to which are connected the conductors D F. connectingin anysuitable well known way with a battery and alarm or hell mechanism(not shown). From post B extends a conductor F to the fulcrum G of leverII. The lever H is adapted to touch the contact pieces or posts I K.These contact pieces are secured by screws or fastenings L M near oneextremity of the base A and a conductor N connects the posts L C whileconductor 0 connects fastenings L M. The fulcrum G is located near theopposite extremity of base A from the posts I K and the lever II isconnected at one of its ends to said fulcrum. The opposite or free endof the lever is adapted to make the connection with the contacts I K anda spring or weight P tends to hold the lever in contact with the pieceI. The various parts of the device are thus located within the boundaryof base A making a compact structure.

The base A has holes Q through which screws or fastenings can be passedfor securing the base to a convenient place as a Wainscot or window caseR. As the base is adapted to sit flat on its seat and the lever II movesin the plane of the base the latter can be directly fastened in thedesired locality such as an exposed face or portion of easing R and nopreliminary recessing or cutting is required for providing a seat forsaid base or play room for the lever so that the device is readilyapplied in place. From lever H extends a thread or connection S to awindow sash T said thread being connected to the sash at one side of thelights or panes U so as to be out of line of view'and not readilydiscoverable, especially from the outside.

When the thread S is connected to the sash T the latter is slightlyraised or opened to pull the thread and hold lever I-I out of contaotasseen in Fig. 1 or the thread S might be connected to the sash in such away as to hold the lever out of contact even when the sash is entirelyclosed. It now it be attempted to open the sash T to its full extent thethread S will move lever I-I into contact with post K and as said threadis rupturable or not excessively strong any considerable strain thereonwill break the same whereon the spring P will move lever H into contactwith post I. Should the thread S be cut the lever II-will likewise comeinto contact with post I. The circuit it will be noticed is closed whenlever II touches either of the posts I K.

Of course I do not confine the use of my device to windows as it mightbe applied elsewhere as for example on doors.

When the alarm is not required the thread S can be detached from thewindow sash and secured at any fixed point to hold the lever out ofcontact. In summer time for example it frequently happens that the uppersash is down or open and by slightly raising the lower sash T the leverII is held out of connection. Any person then attempting to enter byclimbing in at the upper opening will press upon and push down the lowersash thus causing the lever H to make contact and move it in onedirection, and a flexible thread In testimony whereof I have hereuntoset S connected with the lever and adapted to be my hand in the presenceof two subscribing engaged with a window or door for sustain- Witnesses.

ing' the lever free from connection with the JULIUS KAMSLER. 5 contactson the base plate until said thread Witnesses:

is tightened, or loosened or ruptured, sub- JACOB KAMSLER,

stztntiztlly as described. E. F. KASTENHUBER.

